The total current flowing in a circuit of 200 lamps in parallel, each of a resistance of 400 ohm and connected across an input of 100 volts is
- 25 amps.
- 50 amps.
- 40 amps.
Explanation from PART66Online
Each lamp draws I = V / R = 100 / 400 = 0.25 A. In parallel all 200 lamps share the same 100 V, so the total current is 200 x 0.25 = 50 A.
Y
yourguess3 asked · 9 Sep 2013
how?
Community Comments (1)
P
PART66Online
10 Sep 2013
I = U / R
Total R = 400 / 200 = 2
So I = 100 / 2 = 50
Total R = 400 / 200 = 2
So I = 100 / 2 = 50
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